351 

   352 def onevent(event):

   353     """decorator to ease event / callback binding

   354 

   355     >>> from cubicweb import onevent

   356     >>> @onevent('before-source-reload')

   357     ... def mycallback():

   358     ...     print 'hello'

   359     ...

   360     >>>

   361     """

   362     def _decorator(func):

   363         CW_EVENT_MANAGER.bind(event, func)

   364         return func

   365     return _decorator